WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 205892

CAS#: 1380288-87-8

Description: Pinometostat, also known as EPZ-5676, is a small molecule inhibitor of histone methyltransferase with potential antineoplastic activity. Upon intravenous administration, EPZ-5676 specifically blocks the activity of the histone lysine-methyltransferase DOT1L, thereby inhibiting the methylation of nucleosomal histone H3 on lysine 79 (H3K79) that is bound to the mixed lineage leukemia (MLL) fusion protein which targets genes and blocks the expression of leukemogenic genes.

Price and Availability


USD 750
USD 3950

USD 1450
USD 5250

USD 2250
USD 9750

EPZ5676 (Pinometostat), purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 205892
Name: Pinometostat
CAS#: 1380288-87-8
Chemical Formula: C30H42N8O3
Exact Mass: 562.33799
Molecular Weight: 562.70628
Elemental Analysis: C, 64.03; H, 7.52; N, 19.91; O, 8.53

Synonym: EPZ5676; EPZ-5676; EPZ 5676; Pinometostat.

IUPAC/Chemical Name: (2R,3R,4S,5R)-2-(6-amino-9H-purin-9-yl)-5-((((1r,3S)-3-(2-(5-(tert-butyl)-1H-benzo[d]imidazol-2-yl)ethyl)cyclobutyl)(isopropyl)amino)methyl)tetrahydrofuran-3,4-diol


InChi Code: InChI=1S/C30H42N8O3/c1-16(2)37(13-22-25(39)26(40)29(41-22)38-15-34-24-27(31)32-14-33-28(24)38)19-10-17(11-19)6-9-23-35-20-8-7-18(30(3,4)5)12-21(20)36-23/h7-8,12,14-17,19,22,25-26,29,39-40H,6,9-11,13H2,1-5H3,(H,35,36)(H2,31,32,33)/t17-,19+,22-,25-,26-,29-/m1/s1

SMILES Code: O[C@H]1[C@H](N2C=NC3=C(N)N=CN=C23)O[C@H](CN([C@H]4C[C@@H](CCC5=NC6=CC(C(C)(C)C)=CC=C6N5)C4)C(C)C)[C@H]1O

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>2 years if stored properly

Drug Formulation:
Stock solutions (50 or 10 mM) were prepared in dimethylsulfoxide (DMSO) and stored at −20°C.

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code:


1: Klaus CR, Iwanowicz D, Johnston D, Campbell CA, Smith JJ, Moyer MP, Copeland RA, Olhava EJ, Scott MP, Pollock RM, Daigle SR, Raimondi A. DOT1L inhibitor EPZ-5676 displays synergistic antiproliferative activity in combination with standard of care drugs and hypomethylating agents in MLL-rearranged leukemia cells. J Pharmacol Exp Ther. 2014 Sep;350(3):646-56. doi: 10.1124/jpet.114.214577. Epub 2014 Jul 3. PubMed PMID: 24993360.

2: Basavapathruni A, Olhava EJ, Daigle SR, Therkelsen CA, Jin L, Boriack-Sjodin PA, Allain CJ, Klaus CR, Raimondi A, Scott MP, Dovletoglou A, Richon VM, Pollock RM, Copeland RA, Moyer MP, Chesworth R, Pearson PG, Waters NJ. Nonclinical pharmacokinetics and metabolism of EPZ-5676, a novel DOT1L histone methyltransferase inhibitor. Biopharm Drug Dispos. 2014 May;35(4):237-52. doi: 10.1002/bdd.1889. Epub 2014 Feb 14. PubMed PMID: 24415392.

3: Daigle SR, Olhava EJ, Therkelsen CA, Basavapathruni A, Jin L, Boriack-Sjodin PA, Allain CJ, Klaus CR, Raimondi A, Scott MP, Waters NJ, Chesworth R, Moyer MP, Copeland RA, Richon VM, Pollock RM. Potent inhibition of DOT1L as treatment of MLL-fusion leukemia. Blood. 2013 Aug 8;122(6):1017-25. doi: 10.1182/blood-2013-04-497644. Epub 2013 Jun 25. PubMed PMID: 23801631; PubMed Central PMCID: PMC3739029.